As I said here is my DIY for the M performance exhaust. Not very difficult. The dealerships charge hundreds of dollars to do this and its so easy. It took me about 1h and 15m because I took photos and stopped a couple times.

I paid $900 for the exhaust shipped to my door and $0 for installation.

Please do this at your own risk. Iam not responsible if you mess something up. If you feel like you cant, dont attempt it. Take it to someone.

If you guys have any questions just ask. Hope this helps, and Enjoy the exhaust.
Sorry for the few typos I was typing fast trying to get done so I can go watch the Bears game.
EDIT: Fixed Typos.

VIDEOS:

Took some videos before and after I bolted on the M Performance. I used my Iphone5 so hope it came out ok. I pointed the speaker towards the exhaust for better sound.

EDIT: Here is the video after 1000 miles. Its "borken in". I think it sounds deeper, and it did get louder. I expected this reading up on past threads. I think its the perfect amount of exhaust noise and its not intrusive at all. If you get a killer deal on it I suggest get it.
Its a warm start, revs are up to 4k, golf tee mod done flap fully open. I started in comfort mode and switched to sport in the end of the video.

the last two views shows a lot of pipes ??! looks kinda weird... i thought it would be just one or two... but three?

a great DYI if i had $900 to spare... but i am getting married.

Congrats on the marriage, I am getting married next year as well. She got a fat ring I got a F30 lol jk. No I set money aside for the exhaust specifically.

As for the 3 piece piping, I know it looks strange. What they did was add those big chrome tips with the M logo, and instead of them being sort of tapered to fit the muffler pipes they used a smaller pipe welded the tips on it, and then slipped that on the muffler tips and then welded that. Its a bit strange but whatever saves them money I guess.

Quote:

Originally Posted by riM3

Well done... I can't thank folks (like you) who take the time to put these DIYs together, enough!

I enjoy it. I love working on cars and staying busy in the garage. Plus it helps everyone else on here.

Thanks for putting up the thread on the front page. I posted this DIY a few months ago, I didnt really think anyone cared or wanted to know how to do it. Plus everybody is way more interested in coding so most regular DIY's get overshadowed by the cooler stuff

Quote:

Originally Posted by Diver

Nice how to. Used bailing wire, but no spit

No spit just good old wire. It's the only thing that works for now, untill someone comes up with something different (I have something in the works stay tuned)

Quote:

Originally Posted by f30fanboy

Good job, thanks for sharing. We need more DIY posts.

F30 community is still fairly new, but theres a lot of good DIY's on there already. I have quite a few myslef. Squeak and rattle fixes, fascia removal, radar detector hardwire. Im planning a ton more DIY's in the spring when the weather gets nicer. Planning a laser jammer DIY. Thats should be fun.

Quote:

Originally Posted by Beemw335

Nice!
Im curious as to how the f30 with M exhaust sounds compared to the e9x with performance exhaust.
Anyone heard both??

I Heard the n54 is way louder and more aggressive, but thats just hearsay. As for the e9x N55 no clue. Just the clips on youtube for aftermarket exhaust.

Quote:

Originally Posted by EINSER M

you need to do DIY for a living! bitchen!!!!

I do do it for a living, well sort of. Im automotive manufacturing. Trying to take this certified electrical course venturing into new things. But getting a free course out of my company is like pulling teeth.